Scriptwritter Roberto Orci talked about Star Trek 2 during an interview given to SciFi (here):

“I think the major lesson we learned is that fans were willing to accept differences and surprises, provided that they were somehow echoes or inspired by canon. We still have to be true to Star Trek the next time around, but we’ve also been blessed with being able to be unpredictable. And that doesn’t mean we can just be shocking for no good reason and just throw everything away. … It still has to echo everything that Star Trek has been. […] We have agreed to write another one. We’re going to start thinking about it any second now. But we’re still just having a mental sorbet before we jump back in. And, you know, just seeing all the reactions to the movie. We want to make sure we take it all in and really figure out what worked and what didn’t and proceed from there. But now that we have… an open canvas, … anything can happen.”

Scriptwriter Roberto Orci

It sounds like like Orci feels he has more freedom than before thanks to the success of the first film. Good then! because I definitely want him and Alex Kurtzman to explore their own take on the Star trek franchise!